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O'Reilly Platform
book
流畅的Python(第2版)
by
Luciano Ramalho
April 2023
Intermediate to advanced
769 pages
25h 16m
Chinese
Posts & Telecom Press
Content preview from
流畅的Python(第2版)
190
|
第
7
章
杂谈
Python
是一门函数式语言吗
?
2000
年的某一天,我参加了
Zope
公司在美国组织的一场讲习班,期间
Guido van Rossum
到访了教室(他不是讲师)。在课后的问答环节,有人问他
Python
的哪些功能是从其
他语言借鉴而来的。他答道:“
Python
中一切好的功能都是从其他语言中借鉴来的。”
布朗大学计算机科学教授
Shriram Krishnamurthi
在其论文“
Teaching
Programming
Languages in a Post-Linnaean Age
”的开头这样写道:
编程语言“范式”已近末日,是旧时代的遗留物,令人厌烦。既然现代语言
的设计者对范式不屑一顾,那么我们的课程为什么要像奴隶一样对其言听计
从呢?
在该论文中,下面这一段点名提到了
Python
:
对
Python
、
Ruby
或
Perl
这些语言还要了解什么呢?它们的设计者没有耐心
去精确实现林奈层次结构,设计者按照自己的意愿从别处借鉴功能,创建出
完全无视过往概念的大杂烩。
Krishnamurthi
指出,不要试图把语言归为某一类;相反,应把语言视作功能的聚合。
7.10
节提到的“
Beyond Paradigms
”演讲就受到了他的影响。
为
Python
提供一等函数打开了函数式编程的大门,不过这并不是
Guido
的本意。他在
“
Origins of Python
’
s Functional Features
”一文中说,
map
、
filter
和
reduce
的最初目的
是为
Python
增加
lambda
表达式。这些功能都由 ...
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Publisher Resources
ISBN: 9787115612366